Commercial building

Burgess Garage (Richland County, Montana)
Burk Burnett Building (Tarrant County, Texas)
Burke Building (Allegheny County, Pennsylvania)
Burlington Headquarters Building (Douglas County, Nebraska)
Burlington Montgomery Ward Building (Chittenden County, Vermont)
Burnell Tavern (Cumberland County, Maine)
Burnett & Moore Hardware Building (Okmulgee County, Oklahoma)
Burnett County Abstract Company (Burnett County, Wisconsin)
Burnett's Diner (Pittsylvania County, Virginia)
Burnham Block (Benton County, Arkansas)
Burns Building (Bexar County, Texas)
Burr Block (Lancaster County, Nebraska)
Burr Oak Savings Bank (Winneshiek County, Iowa)
Burr Oak Tavern (Waukesha County, Wisconsin)
Burt Building (Mahoning County, Ohio)
Burton Building (Santa Cruz County, Arizona)
Burton Hardware Store (Sussex County, Delaware)
Burwell Building Tennessee Theater (Knox County, Tennessee)
Bus Depot (Washington County, Oklahoma)
Busby Office Building (Pittsburg County, Oklahoma)
Busch Building (Dallas County, Texas)
Bush and Brey Block and Annex (Marion County, Oregon)
Bush-Breyman Block (Marion County, Oregon)
Bush-Herbert Building (Davidson County, Tennessee)
Bush-Philips Hardware Co. (Muscogee County, Georgia)
Bussey Buildings (Potter County, Texas)
Buster Meat Market (Custer County, Idaho)
Butler Bank (Hood River County, Oregon)
Butler Brothers Company (Hennepin County, Minnesota)
Butler County National Bank (Butler County, Pennsylvania)
Butlers' Store (Madison County, Alabama)
Former general store repurposed as municipal buildings
Butner--Mctyre General Store (Cobb County, Georgia)
Buxton Inn (Licking County, Ohio)
Buyers Building (Multnomah County, Oregon)
Buzby's General Store (Burlington County, New Jersey)
Byrnes & Kiefer Building (Allegheny County, Pennsylvania)
C & M Garage (Coconino County, Arizona)
C. B. Case Motor Co. Building (Stone County, Arkansas)
C. Brewer Building (Honolulu County, Hawaii)
C. C. Walters Building (Payne County, Oklahoma)
C. E. McEachron General Merchandise (Pennington County, South Dakota)
C. F. Calkins Building (Kay County, Oklahoma)
C. Guy Cutlip Building (Seminole County, Oklahoma)
C. J. Howe Building (Linn County, Oregon)
C. K. Henry Building (Multnomah County, Oregon)
C. L. Cooper Building (McIntosh County, Oklahoma)
C. L. Smith & Son General Store (Stone County, Arkansas)
C. N. Cotton Warehouse (McKinley County, New Mexico)
C. R. Alden Building (Victoria County, Texas)
C. Segelke Building (Platte County, Nebraska)
C.A. Schnack Jewelry Co. Store (Rapides Parish, Louisiana)
C.B. Caudill Store (Letcher County, Kentucky)
C.B. Tarver Building (Muscogee County, Georgia)
C.C. Guernsey Building (Grant County, Oregon)
Single story tuff stone building built in 1899
C.E. Thompson General Store and House (Clark County, Arkansas)
Cactus Motor Lodge (Quay County, New Mexico)
Cactus Press--Plaza Paint Building (Yuma County, Arizona)
Cadwell Building (Kittitas County, Washington)
Two story brick commercial building built in 1889
Caffe' Piccalo (Rock Island County, Illinois)
Diner was moved in 2010 to an undisclosed location for restoration as Papa Du's BBQ.
Cahow Barber Shop (Merrick County, Nebraska)
Calaveras County Bank (Calaveras County, California)
Calcasieu Marine Bank (Calcasieu Parish, Louisiana)
Caldwell Block (Essex County, Massachusetts)
Caldwell Building (Calhoun County, Alabama)
Caldwell Tavern (Washington County, Pennsylvania)
Caldwell-Milner Building (Jefferson County, Alabama)
Caledonia Building (Hampden County, Massachusetts)
Calico & Brown General Store (Garrard County, Kentucky)
California Fruit Store (Skagit County, Washington)
California Wine and Liquor Store (Eau Claire County, Wisconsin)
Callas Sweet Shop (Daviess County, Kentucky)
Calumet Hotel (Pipestone County, Minnesota)
Cambridge News Office (Washington County, Idaho)
Camden Fire Insurance Association (Camden County, New Jersey)
Camden Safe Deposit & Trust Company (Camden County, New Jersey)
Cameron-Drummond-Slagsvold Building (Eau Claire County, Wisconsin)
Romanesque Revival Commercial Building
Campbell and Kelly Building (Nye County, Nevada)
Campbell Building (Allegheny County, Pennsylvania)
Canal Dime Savings Bank (Richland County, South Carolina)
Canal House (Fayette County, Indiana)
Candler Building (Fulton County, Georgia)
Cannon Building (Greenville County, South Carolina)
Cannon Building (Rensselaer County, New York)
Canton House (Baltimore, Maryland)
Canton Wholesale Company Building (Cherokee County, Georgia)
Cap's Place (Broward County, Florida)
Caperton Block (Jefferson County, Kentucky)
Capital Bank Tower (Ingham County, Michigan)
Capital City Press Building (East Baton Rouge Parish, Louisiana)
Capital Club Building (Wake County, North Carolina)
Capitol Diner (Essex County, Massachusetts)
Capitol Life Insurance Building (Denver County, Colorado)
Capitol, The (Cumberland County, North Carolina)
Capt. John H. Ozmon Store (Queen Anne's County, Maryland)
Caradine Building (Green County, Wisconsin)
Cargo Warehouse (Erie County, Ohio)
Carithers Store Building (Fulton County, Illinois)
Carl Fischer Meats (Yamhill County, Oregon)
Carl Koch Block (Winnebago County, Wisconsin)
Commercial building next to the Tayco Street bascule bridge
Carl L. Bloxham Building (Baldwin County, Alabama)
Carl's (Fredericksburg, Virginia)
Carlin's Amoco Station (Roanoke, Virginia)
Carlock Building (Lubbock County, Texas)
Carlton State and Savings Bank (Yamhill County, Oregon)
Carmen IOOF Home (Alfalfa County, Oklahoma)
Carmen IOOF Lodge No. 84 (Alfalfa County, Oklahoma)
Carnahan Store (Natchitoches Parish, Louisiana)
Carolina Building (Potter County, Texas)
Carolina School Supply Company Building (Former) (Mecklenburg County, North Carolina)
Carolina Supply Company (Greenville County, South Carolina)
Carpenter Building (Benton County, Arkansas)
Carriss's Feed Store (Shelby County, Kentucky)
Carriss's Store (Shelby County, Kentucky)
Carroll Building (New London County, Connecticut)
Carroll Building (Orange County, Florida)
Carter Coal Company Store (McDowell County, West Virginia)
Carter Coal Company Store (McDowell County, West Virginia)
Carter-Rice Building (Denver County, Colorado)
Cartter Building (Chase County, Kansas)
Carty's Camp (San Bernardino County, California)
Cary Building (New York County, New York)
Cary Building (Wayne County, Michigan)
Casa Blanca Cafe (Navajo County, Arizona)
Casa de Tableta (San Mateo County, California)
Casa Grande Dispatch (Pinal County, Arizona)
Casey Building (Silver Bow County, Montana)
Three story brick commercial building built in 1890
Casey's Diner (Middlesex County, Massachusetts)
Tiny 10-stool diner is one of the oldest and best-preserved in existence.
Cashier's House (Erie County, Pennsylvania)
Casper Supply Company of SD (Pennington County, South Dakota)
Casper Weckerle Grocery Buildings (Buchanan County, Missouri)
Caspiana Plantation Store (Natchitoches Parish, Louisiana)
Cass Motor Sales (Wayne County, Michigan)
Cassel's Store (Liberty County, Georgia)
Cassidy's Diner (New Haven County, Connecticut)
Castleberry Boarding House (Livingston Parish, Louisiana)
Castner--Knott Building (Davidson County, Tennessee)
Catlettsburg National Bank (Boyd County, Kentucky)
Catoosa Indian Trading Post (Rogers County, Oklahoma)
Cattle Bank (Champaign County, Illinois)
Cave Cafe (Franklin County, Missouri)
Cavender's Store (Walker County, Georgia)
Caxton Building (Cuyahoga County, Ohio)
Cazzell Buildings (Potter County, Texas)
Centennial National Bank (Philadelphia County, Pennsylvania)
Center & Abernathy Store Building (Polk County, Tennessee)
Center Diner (Westchester County, New York)
Classic diner built by the National Diner Co., it was the "Sunset Diner" in the "Little Lulu" comic strip.
Center Wheeling Market (Ohio County, West Virginia)
Central Assurance Company (Franklin County, Ohio)
Central Bank and Trust Co. (Avoyelles Parish, Louisiana)
Central Bank and Trust Company, Mansura (Avoyelles Parish, Louisiana)
Central Block (Hughes County, South Dakota)
Central Block Building (Hamilton County, Tennessee)
Central Building (Curry County, Oregon)
Central Dairy Building (Boone County, Missouri)
Central Drug Store (Okmulgee County, Oklahoma)
Central Drug Store Building (Payne County, Oklahoma)
Central Embarcadero Piers Historic District (San Francisco County, California)
Central Garage (Jefferson County, New York)
Central House (Stephenson County, Illinois)
Originally built as a hotel by the founder of Orangeville, the building was converted to be a single family dwelling.
Central Market (Lancaster County, Pennsylvania)
Central National Bank (Shawnee County, Kansas)
Central National Bank (Richmond, Virginia)
Central National Bank (Woods County, Oklahoma)
Central National Bank (Washington, District of Columbia)
Central National Park Building (Peoria County, Illinois)
Central National Tower (Calhoun County, Michigan)
Central Office Building (Scott County, Iowa)
Central Savings Bank (New York County, New York)
Central Savings Bank (Keokuk County, Iowa)
Central Tower Building (Mahoning County, Ohio)
Central Trust Company (Camden County, New Jersey)
Central Trust Company Building (Bexar County, Texas)
Central Trust Company Buildings (Blair County, Pennsylvania)
Central Vermont Railway Depot (Washington County, Vermont)
Central Warehouse (Saginaw County, Michigan)
Century Block (Lorain County, Ohio)
Century Building (Allegheny County, Pennsylvania)
Chadwick Square Diner (Worcester County, Massachusetts)
Rare early version of a streetcar inspired diner
Chamber of Commerce (Hennepin County, Minnesota)
Chamber of Commerce Building (Alameda County, California)
Chamber of Commerce Building (Denver County, Colorado)
Chamber of Commerce Building (New York County, New York)
Chamber of Commerce Building (Hennepin County, Minnesota)
Chamber of Commerce Building (Vigo County, Indiana)
Chamber of Commerce Building (Baltimore, Maryland)
Chamberlin Iron Front Building (Union County, Pennsylvania)
Chambers Building (Jackson County, Missouri)
Chambers Transfer & Storage Co. (Maricopa County, Arizona)
Chambless Camp (San Bernardino County, California)
Chambliss Building (Hinds County, Mississippi)
Champ's Diner (Providence County, Rhode Island)